Heater



(No Model.)

EpB; WooLsToN.

HEATER.

Patented June 10, 1890.

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.UNITED STATES PATENT OFFICE.

ELIJAI-I B. VVOOLSTON, OF MARLTON, NEW JERSEY.

H EATER.

SPECIFICATION forming part of Letters Patent No. 429,672, dated J' une10, 1890.

Application filed October 11, 1889. Serial No. 326,742. (No model.) i

To LZZ whom it may concern:

Be it known that I, ELUAH B. WooLsToN, a citizen of the lUnited States,residing at Marlton, in the county of Burlington and State of NewJersey, have invented certain new and useful Improvements in Heaters;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will en able others skilled in theart to which it appertains to make and'use the same.

My invention relates to a centraldraft heating-stove such as shown anddescribed in my former patent, No. 412,317, dated October 8,1889; and ithas for its object the more thorough and complete combustion of fuel.

With these ends in view myinvention consists in the peculiar featuresand combinations of parts more fully described hereinafter, and pointedout in the claim.

In the accompanying drawings, the reference-letter a denotes thel mainbody portion of any ordinary heating-stove, furnace, or similar heater,and b a horizontal grate located within it. This grate is provided witha central opening c, surrounded bya vertical cylinder d, having itsupper portion provided with openings c. A conical or similarly-shapeddeflector f is placed over the upper end of the cylinder to deflect thefuel around the central cylinder. This cap also acts as a shield to keepthe 4fuel in the feeder g from becoming overheated by the incoming air,which otherwise might pass directly up into the feeder. The feeder islocated directly above the aircylinder d, which has its upper end closedby the top h, so that the air is made to pass out laterally through theopenings. Now in this arrangement it will be seen that the air withinthe central cylinder becomes highly heated 4o by the surrounding fuel,thereby creating a strong draft and supplying such a large amount ofoxygen that the fuel becomes thoroughly heated and perfectly consumed.The inflowiug air passes out through the perforations in a lateraldirection and enters the fuel within the ire-pot m at a point beneaththe overhanging edges of the cap, as shown by arrows.

The supply of air to the central chamber is regulated by means of thedamper c', which commands the lower end of the cylinder, and is operatedby a laterally-extending rod j, having a handle la upon its outerextremity.

It is evident that many slight changes which might suggest themselves toa skilled mechanic could be resorted to without departing from thespirit and scope of my invention; hence I do not limit myself to theexact construction shown; but,

Having thus described my device, what I claim as new, and desire tosecure by Letters Patent, is-

The combination, in a stove or similar device, of a fire-pot providedwith a grate having a central opening, a cylinder arranged incoincidence with the opening and having a series of perforations aroundits upper portion, a cap or deiector placed over its upper end andhaving its lower portion extending over the vertical sides of saidcylinder, and a rotary damper commanding the lower end of the cylinder,all arranged in the manner and for the purpose substantially asdescribed.

In testimony whereof I affix my signature in presence of two witnesses.

ELIJAH B. WOOLSTON. l Witnesses:

F. P. DAvIs, R. G. DUBOIS.

